Jolly Harbour weather in September 2025

Q: How hot is it in Jolly Harbour in September?

Daytime temperatures usually reach 31°C in Jolly Harbour in September with very high heat and humidity, falling to 25°C at night.

Q: How sunny is it in Jolly Harbour in September?

There are normally 7 hours of bright sunshine each day in Jolly Harbour in September - that's 61% of daylight hours.

Q: How warm is the sea around Jolly Harbour in September?

The average sea temperature around Jolly Harbour in September is 29°C.

Q: Does it rain in Jolly Harbour in September?

There are usually 17 days with some rain in Jolly Harbour in September and the average monthly rainfall is 140mm.

Q: What is the chance of a cyclone in Jolly Harbour in September?

On average 1.3 days in September in Jolly Harbour are likely to be affected by the passage of one or more tropical storms.

Expect 31°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Jolly Harbour in September. Check more long-term weather averages for Jolly Harbour in September before you book your next holiday to Antigua in 2025/2026.

31
31°C max day temperature
7
7 hours of sunshine per day
17
17 days with some rainfall
25
25°C min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
140
140 mm of monthly rainfall
11
11+ (Extreme) UV index
29
29°C sea temperature

More about Jolly Harbour

Jolly Harbour by month

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The September weather guide for Antigua (Jolly Harbour) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

More about Antigua

How hot is it in Jolly Harbour in September?

Daytime temperatures usually reach 31°C in Jolly Harbour in September with very high heat and humidity, falling to 25°C at night.

How sunny is it in Jolly Harbour in September?

There are normally 7 hours of bright sunshine each day in Jolly Harbour in September - that's 61% of daylight hours.

How warm is the sea around Jolly Harbour in September?

The average sea temperature around Jolly Harbour in September is 29°C.

Does it rain in Jolly Harbour in September?

There are usually 17 days with some rain in Jolly Harbour in September and the average monthly rainfall is 140mm.

What is the chance of a hurricane in Jolly Harbour in September?

On average 1.3 days in September in Jolly Harbour are likely to be affected by the passage of one or more tropical storms.

Jolly Harbour September sunrise & sunset times

Browse the sunrise and sunset times for Jolly Harbour in September 2025. Select a month to view Jolly Harbour sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Monday, 1st September 2025	05:54	18:21
Monday, 15th September 2025	05:56	18:09
Tuesday, 30th September 2025	05:58	17:57

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Antigua - quick facts
Flight time^✝	9 hours
Time difference	UK -4 hours
Language(s)	English
Currency	Eastern Caribbean Dollar
Electricity	A + B plug (230V)
Driving side	Left
Why visit?	Beaches Nature Nightlife
Tourist info	Antigua Barbuda Tourism Authority